Unless you're a serious XS/C hacker, you'll likely get lost amid the low level stuff in Tk.

As joost mentioned, you might try Tcl::Tk. vkon claims its pretty compatible, but I haven't tried it yet, due to a memo¹ I got circa 2006.

1. "If it doesn't run in a browser it don't mean sh*t.". You might check your email archives to see if you got the memo too.